Boiler-tube cleaner.



J. ZILLIOX.

BOILER TUBE GLEANER.

APPLIOATION PILED JULYM, 1908.

93 1,245. Patenta& Aug. '17, 1909 mL u u JHATENT OFFICE.

JOHN ZILLIOX, OF BUFFALO, NEW YORK.

BOILER-TUBE CLEANER.

Application filed. July 24, 1908.

Specicaton of Letters Patent.

Patented Aug. 17', 1909.

Serial No. &45,174.

Te ali whom it" may concem:

Be it known that I, Jom ZILLIOX, a citizen of the United States, residing at Bufialo, in the County of Eric and State of New York, have invented a new and useful Improvement in Boiler-Tube Cleaners, of which the following is a specification.

This invention relates to the class of boiler-tube cleaners having a hammer adaptcd to strike the inner side of the tube for breaking and detaching the scale deposited on its outer side.

The object of the intention is the provision of a sin-"vile, effective and inexpensive tool of this kind which can be operated by hand if desiree, rendering the devce especially useful for industrial and other plants having but, a single steam-boiler.

in the accompanying drawings: Figure 1 is a sectional elevation of the cleaner. Figs.

and are cross sections thereof on the correspondingly nuinlh *red linos in Fig. l. Fig. t is a persnective view of the double gear- ;ark connected with the operatng handle. i is a prapelive View of the hanuner.

;s of reference indicate corres; ending parte throughout the several views.

The shell or casing of the cleaner is preferably cylindrieal and divided lengthwise and centrally into two similar sections A rigidly secured together near their front and rear ends by tr; nsverse bolts (a or other suitable means.

Arranged centrally in the casing and preferably extending from side to side thcreof is a longitudinal slot or chainber C in which plays an oscillating hammer D having its hub journaled on a ti'ansverse shaft (Z supported in openings or bearings in the sections A, as best shown in Fig. 2. The hub of the hammer is provided on opposite sides of the hammer-shani; with gear segmente or pinions e which mesh with longitudinal gear racks F which are yoked together at their ends by cross bars or lugs f, f Projecting forwardly from the front cross bar f is a longitudinal guide red g which slides in an opening in the head of the casing A while to the real' cross bar f of the gear racks an operating rod or handle H is secured for reciprocating the racks and oscillating the hammer in an obvious maune fhis handle is guided in an opening in the rear end of the casing.

In order to exclude soot from the opening in which the rod g is guided, the projecting front end of this rod is housed by a cap I preferably provided at its base with a perforated flange z' through which pass fastening screws j by which the cap is Secured to the front end of the casing. The casing is provided in the front and rear ends of the hammer-chamber C with recesses m for receiving the yoked ends of the gear racks F.

The shank of the hammer D is of such a length that the hammer may project beyond the surface of the casing Jr both on the front and rear sides of the shaft b and on the same side of the boiler tube, so that upon reciprocating the Operating handle H, the hammer is caused to strike the inner surface of the tube at each extremity of its stroke, delivering two forcible blows against the same side of the tube and on opposite sides of the hammer-pivot' and breaking and detaching the incrustation on the enter side of the tube.

In the use of the tool, the same is slowly rotated bodiiy in the boiler tube by means of the handle, as the cleaning operation procecds, in order toact upon all sdes of the tube and detach the scale from all portions thereof. By this improved Construction a comparatively short stroke of the handle produces the necessary stroke of the hammer which latter oscillates through an are of a hundred and eighty degrees, enabling powerful blows to be delivered against the tube with comparatively little effort on the part of the operator. By extending the hammerchamber C from side to side of the casing, a free and unobstructed discharge is provided for any soot that may drop into the same, thus preventing clogging of the gear racks F and seginents c.

L indicates a scraper, applied to the casing, and projecting beyond the cylindrical surface thereof for the purpose of detaching any soot adhering to the inner surface of the boiler-tube by the act of moving the tool back and forth in the tube. This scraper preferably consists of a split steel ring seated in an annular groove in the front portion of the casing. In the preferred Construction shown in the drawings, this groove is formed by an annular recess Z in the front end of the easing and the cap-fiange z' which forms the front wall of said groove. The projecting portion of the scraper-rng is beveled both on its front and rear sides, as shown, to

facilitate the passage of the scraper over sup-I hard obstructions in the boler-tube, the elaseuting handle eo''meeted to the reer *ends' of ticity ot' the ring permittin'g it to yield and contract upon encountering such obstructions.

lVhile a double gear-rack and eoperatng gear segmente are herein shown and described, it is obvous that a single rack and segment could be used but the double construet-ion is preterably employed to equalize the strains on opposte sides of the hammer, It! is also obvious that the tool could be operute'd by poWer as Well as by hand.

I claim as my invention:-

1. The combination of a rotatable casing having a hammer-chamber, a swinging hammer arranged in said ehamber, and a continuo'us rod extending through the retr ot 'the casing, Slidable lengthwiee thereof and hzu 'ing means for positively connecting the rod With the hammer, said rod being nonrotetable relative to seid czising.

2. The eombination of e casing having a hammer-chamber extending through its side, 'LL hammer pivoted in'said clmmber, a reciprocating hendle guided in the easng and extending through the rear end thereot, and genrng eonneeting the hammer on both sides thereot With said handle, Substantially us set t'orth.

;3. The combinatiim ot n easing having D. hammer chamber, a sWinging hammer pivoted in eaid ehzunber and hring gear teeth, a' gear rack movable 'lengthwise or the casing and engaging said teeth, and means tor reeiproeating said gear rneh, substani tiully as set toi-th.

4. The combination of a cueing having a longitudinal hammer-chzmiber, 21 shef-t extending across said chamber, zt hmnmer mounted on said sheft and having its hub provided With gear-teeth, e gear-mel( guidet in the casing'und movable lengthwise of the cas ing and meshing With said teeth, and e reciprocating handle connected With said gear rack and extending through the rear end of the easing, substantially a s set forth.

5. The eombination of a ensing having {L longitudinal 'hemmer-chamher, a swinging hammer pivoted in said chamber and having gear teeth, u gear raek engaging said teeth and provided at its front end With a. guiderod slidable in the casing and at its opposite end With z n operatinghandle extending through the rear end of the cnsing, substantially es set forth.

(5. The combintion ot :L cesing having :L longitudinel hammer-chamber, e swingng han mer pivoted to osei'llete lengthwse in said chamber and provided on oppo'site sides of its shank With gear-segmente, gear reeks :nrringed on opposite sides of the hammer und engnging said segmente, a guide supported in the casing and connected to the Yt'ront ends of the gear-meke, and :i reciprothe gear racks and extending through the rear end of the casing, substantially as Set forth.

7. -`he combination of a casing provided With a longitudinal hammer-ehamber therein having openings on opposite Sides thereof, e hammer pivoted in said ehumber and udapted to project through the opening in one side of seid chamber and both in 'front and ree-r ofthe haimner-pivot, and means tor aetuating the hammer.

S. The combnetion ot' a easing having e innnner-clmmber, a hammer arranged in said ehamber, tt reciproczting member guided in the czsing and opertively connected With' the himmer, e guide extending forxvardly from said reci jroeeting member beyond the front end of the eeing, and :i housing carried hy the easng und inclosing the projecting portion of said guide, substntially es eet 'orth.

i). 'The cen'hination of a ezning having a hunmer-chamber, a` swinging hammer pivoted in said ehamber and having a gearr-iegnent, u longitudinnl gear-rani: gnided in the eusing and engzging said segment, said raeh bnr being provided nt its front end With a longitndinal uide-red passing through the 'front end of tne (using, u housing applied to the front end of the cem-;ing and ineloeing the trent portion ot Seid guide rod, and means 'tor reeiprocating said racl( ber, substantially as torth.

10. The eomhination of a easing, a hummer pivoted te the causing to oseilhtte lengthxvise thereot and cepable of swinging beyond its surface both on the front and rear Sides of the hammer-pivot, and means for zietnating the hammer.

li. The eombination of :a eesing having a hznnmer-chamber extending through its Side, :i hammer pivoted in seid ehamber to Oscllate lengthwise of the casing, the hammer being capable ot swinging beyond the surface of the casing both on the *front and reur of the lnnmner-pivot, and means for ectuating the hammer. v

12. The eombination of a cesing, a hammer pivoted to the casing to oscillnte lengthwise thereot end eapeble of swinging beyond its snr'iece both on the front'and rezir :sides ot the h:immer-pivot, the hammer being provided witn 'gear teeth, :l gear-mel( movnble lengthwise ot the' casing and engeging Seid teeth, and means :tor reciproceting seid gear rack.

Vitness my hand this 20th day ot July, 1.908.

J IN ZILLIOX.

Vitnesses C. F. GEYER, E. M. GRAHAM. 

